Improvement in rice-cleaning machines



PATENT OFFICE.

UNITED S'rA'rns JESSE CARTER, OF LAKE CITY, FLORIDA.

IMPROVEMENT IN RICE-CLEANING MACHINES.

Specification forming part of Letters Patent No. 1 88,499, dated March20, 1877; application liled November 18v 1876; v

To all whom it may concern 4 Be it known that I, JESSE CARTER, of LakeCity, in the County of Columbia and State of Florida, have invented anew and useful Improvement in Machine for Cleaning Rice, &c., of whichthe following is a specification:

Figure 1 is a vertical longitudinal section of my improved machine,taken through the line a: m, Fig. 2. Fig. 2 is a vertical cross-sectionof the stones, the screw, and the disk with the cylinder and the shaft,as hereinafter fully described.

A is a cylinder, which has outwardly-projectin g ring-flanges formedaround its ends, to which are bolted the end plates or heads B G. Thecylinder A is made in two halves, and has flanges or lugs formed uponthe sides of the lower half, to rest upon the top side bars of the frameD.

The grain is introduced through the hopper E, secured in an opening, ain the upper side of the cylinder A, and is discharged through anopening, 01. in the lower side of said cylinder near one end, whichopening is closed by a slide, F, passing in through a hole in the headB, as shown in Fig. 1. In a recess in the lower side or bottom of thecylinder A is placed a stone, G, of suitable grit to operate upon thegrain, and in a recess in the head B, at the discharge end of thecylinder, is secured a stone, H. Through the centers of the cylinder A,the heads B O, and the stone H, passes a shaft, I, the journals of whichrevolve in bearings attached to the top'end bars of the frameD. To theshaft I, within the cylinder A, is attached a spiral thread, J, of sucha width as to reach to, or nearly to, the

shell of the cylinder, so as to move the grain toward the discharge endof said cylinder, rubbing it upon the stones G H. To the shaft I, at theend of the screw J farthest from the stone H, and at alittle distancefrom the head 0, is secured a disk, K, a small space or chamher beingleft between the said disk K and the said head. Through the head 0 isformed a hole, a, to act as a ventilator for the machine, and towithdraw dust from the grain. To the shaft I is attached a pulley, L, tore ceive the band, by which power is applied to the machine.

When the grain has been sufficiently cleaned or hulled, the slide F isdrawn out and the grain allowed to escape into the dischargespout M,from which it passes to the usual screens, fans, and polishers.

The main object of my rice-cleaner is to combine in one machine meansfor both hulling andpounding or mortaringthe rice, while in fact it alsohulls the small rice that fails to get hulled in the ordinary huller.This is ac.- complished by my median screw- J, that projects down to thestone G, working the rice from one end of the cylinder to the other,over the stone G and against the stone H. The screw forces the grain bya gentle and gradually-increasing pressure against the stones andeffectually rubs off the skin as well as the hull. Ordinarily the riceis passed between stones to hull it, and then pounded in a-mortar torelieve it of the skin. The screwcylinder is adjustably attached to itsshaft so as to allow the screw to be brought closer to or farther fromthe stone H, according to the quality of the grain.

What I claim as new and of my invention The combination, with hopperedcylinder E A, having air-space at oneend and deliveryaperture at theother, of the bottom stone G, the end stone H, and the spiral conveyer Jas and for the purpose specified.

- JESSE CARTER. Witnesses:

W. B. N. Onnws, JNo. B. ROBERTS.

I. CARTER.

RIC-E CLEANING MACHINE.

No.188,4=99. Patented March 20,1877.

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